let-env is deprecated

CMakeLists.txt

@@ -20,6 +20,7 @@ option(BUILD_MICROMAMBA "Build micromamba" OFF)
 option(BUILD_MAMBA_PACKAGE "Build mamba package utility" OFF)
 option(MAMBA_WARNING_AS_ERROR "Treat compiler warnings as errors" OFF)
 
+
 include("cmake/CompilerWarnings.cmake")
 
 if (MSVC)
@@ -34,6 +35,8 @@ if (MSVC)
     # add_definitions("-DUNICODE -D_UNICODE")
 endif()
 
+
+
 # Variants
 # ========
 

libmamba/data/mamba.nu

@@ -1,23 +1,21 @@
 
-export def micromamba [arg] {
-  let cmd = arg[0]
-  let argv = arg[1]
+export def micromamba [...arg] {
+  let cmd = $arg.0
+  let argv = if ( $arg.1?  == null ) { "" } else { $arg.1 }
 
-  if ($cmd in [ activate deactivate ]){
-        $env.MAMBA_EXE $cmd $argv
+  if ($cmd in [ activate deactivate ]) {
+        exec $env.MAMBA_EXE $cmd $argv
   }
-
-  elif ($cmd in [update upgrade remove uninstall]){
-        $env.MAMBA_EXE $cmd $argv
-        $env.MAMBA_EXE reactivate
+  elif ($cmd in [update upgrade remove uninstall]) {
+        exec $env.MAMBA_EXE $cmd $argv
+        exec $env.MAMBA_EXE reactivate
     }
-
   else {
     $env.MAMBA_EXE $cmd $arg
-    }
+  }
 }
 
-if ($env.MAMBA_SHLVL? == null){
-    let-env MAMBA_SHLVL = 0
-    let-env PATH = ($env.PATH | append $env.MAMBA_ROOT_PREFIX/condabin)
+if ( $env.MAMBA_SHLVL? == null ) {
+    $env.MAMBA_SHLVL = 0
+    $env.PATH = ( $env.PATH | append ([ $env.MAMBA_ROOT_PREFIX condabin] | path join ))
 }

libmamba/src/core/activation.cpp

@@ -1286,7 +1286,7 @@ namespace mamba
 
         if (!env_transform.export_path.empty())
         {
-            out << "let-env PATH = $(env.PATH | append " << env_transform.export_path << ")\"\n";
+            out << "$env.PATH = $(env.PATH | append " << env_transform.export_path << ")\"\n";
         }
 
         for (const fs::u8path& ds : env_transform.deactivate_scripts)
@@ -1306,7 +1306,7 @@ namespace mamba
 
         for (const auto& [ekey, evar] : env_transform.export_vars)
         {
-            out << "let-env " << ekey << " = " << evar << "\"\n";
+            out << "$env." << ekey << " = " << evar << "\"\n";
         }
 
         for (const fs::u8path& p : env_transform.activate_scripts)

libmamba/src/core/shell_init.cpp

@@ -408,10 +408,10 @@ namespace mamba
 
         content << "\n# >>> mamba initialize >>>\n";
         content << "# !! Contents within this block are managed by 'mamba init' !!\n";
-        content << "let-env MAMBA_EXE = " << mamba_exe << "\n";
-        content << "let-env MAMBA_ROOT_PREFIX = " << env_prefix << "\n";
+        content << "$env.MAMBA_EXE = " << mamba_exe << "\n";
+        content << "$env.MAMBA_ROOT_PREFIX = " << env_prefix << "\n";
         content << "exec $env.MAMBA_EXE shell hook --shell nu --root-prefix $env.MAMBA_ROOT_PREFIX\n";
-        content << "let-env PATH = ($env.PATH | append ($env.MAMBA_ROOT_PREFIX)/bin) \n";
+        content << "$env.PATH = ($env.PATH | append ( [$env.MAMBA_ROOT_PREFIX bin] | path join)) \n";
         content << "# <<< mamba initialize <<<\n";
         return content.str();
     }

mamba/setup.py

@@ -20,8 +20,10 @@
 __version__ = version_ns["__version__"]
 
 data_files = [
-    ("etc/profile.d", ["mamba/shell_templates/mamba.sh",
-                       "mamba/shell_templates/mamba.nu"]),
+    (
+        "etc/profile.d",
+        ["mamba/shell_templates/mamba.sh", "mamba/shell_templates/mamba.nu"],
+    ),
     ("etc/fish/conf.d", ["mamba/shell_templates/mamba.fish"]),
 ]
 if sys.platform == "win32":